Natives In Bloom

Spring has arrived in northern Illinois with warming temperatures and spring rains.  At this time of year, we can observe many of the early ephemerals in bloom.  Many of these species only bloom for a short period before the flowers are gone, but the plants continue to grow and put forth fruits and seeds before dying back altogether until next spring.  Let’s take a look at what is blooming right now in our area.

Bloodroot, Sanguinaria canadensis, by DonArnold, 2025
Bloodroot, Sanguinaria canadensis, colony by DonArnold, 2025

Bloodroot, Sanguinaria canadensis, is one of the earliest plants to bloom as soon as warmer temperatures stabilize.  It is a perennial that grows up to a foot tall.  Each leaf unfolds to reveal a single white flower with bright yellow anthers.  Each flower blooms for only one to two days, and the entire colony of plants last about two weeks.

Sharp-lobed hepatica, Hepatica nobilis acuta, by DonArnold, 2025

Sharp-lobed hepatica, Hepatica nobilis acuta, a member of the buttercup family, reaches only a few inches in height.  Flowers are white, pink, or blue, clustered in tufts of several blooms.  They like woodlands and rocky bluffs, and flowers persist for two to three weeks. 

Celandine poppy, Stylophorum diphyllum, by DonArnold, 2025

Celandine poppy, Stylophorum diphyllum,  is a taller plant between 12″ and 18″ in height.  Each stem bursts forth in two to four golden yellow flowers.  If cut open, the sap is an orangish-yellow color.  After about three weeks, flowers die back and an inch long, ovoid seed capsule grows for several weeks before releasing numerous seeds upon splitting open.

Virginia bluebells, Mertensia virginica, by DonArnold, 2021

Virginia bluebells, Mertensia virginica, stands tall at one to two feet.  Pale pink or blue flower buds open to light blue tubular flowers.  Blooms last about three weeks and make a dazzling display when plants are observed clustered over a large space in many shaded woodlands throughout the area.

Shooting Star, Dodecatheon meadia, by DonArnold, 2025

Shooting star, Dodecatheon meadia, is a group of 17 subspecies of flowering plants found throughout North America and Siberia.  Standing up to 18″ tall, a cluster of eight to twenty purple, pink, or white flowers with yellow stamens hang from the top of each stalk.

Spring Beauty, Claytonia virginica, by DonArnold, 2021

Spring beauty flowers, Claytonia virginica, open on warm, sunny days but remain closed when clouds or cool breezes are present.  They bloom for one to two months in late spring and like dappled sunlit areas.  White blooms with pink lining give off a pleasant floral scent.

White trout lily, Erythronium albidum by DonArnold, 2021
White Trout Lily bloom, Erythronium albidum, by DonArnold, 2021

White trout lily, Erythronium albidum, grows in large patches of four to six inch high plants with bright white blooms that stand out among dark green leaves mottled with brown markings.  The flower nods from a short stalk and blooms for about two weeks in late spring.

Cutleaf toothwort, Cardamine concatenata, by DonArnold, 2021

Cutleaf toothwort, Cardamine concatenata, stands about ten inches tall with large-lobed, toothed leaves.  Many small white flowers with yellow anthers bloom above the leaves for about two weeks.

Mayapple, Podophyllum peltatum, by DonArnold, 2021

Mayapple, Podophyllum peltatum, stands up to eighteen inches tall.  Infertile plants produce one leaf on a single stalk.  Fertile plants have two leaves on petioles branching from the stalk, with a nodding flower growing from the juncture of the petioles.  Flowers are pale white with a yellow or greenish middle.

Prairie trillium, Trillium recurvatum recurvatum, by Karly Tuminello
Large-flowered trillium, Trillium grandiflorum, by СССР, May 2019

Trillium grows in prairie and woodland habitats.  There are seven recognized species, and two of the ones that you are most likely to observe in our area are large-flowered trillium, Trillium grandiflorum, and prairie trillium, Trillium recurvatum recurvatum.  Large-flowered trillium is declining in population, preferring swamps or wet soil areas, which are also declining as development expands and destroys these habitats.  Prairie trillium prefers open woodlands dominated by oak, hickory, and maple species.  All species of trillium are notable for their structure consisting of three leaves and flowers with three petals. 

Dutchmans Breeches, Dicentra cucullaria, by DonArnold, 2025
Dutchmans Breeches, Dicentra cucullaria, by DonArnold, 2021

Dutchman’s breeches, Dicentra cucullaria, stands about six inches tall, with a white flower shaped like a pair of pants hung upside-down from a pedicel.  These plants are found in undisturbed woodlands, especially along ledges and ravines throughout Illinois.

Eastern redbud, Cercis canadensis, by Greg Hume, Apr 2005
Eastern redbud, Cercis canadensis, buds up close by Greg Hume, Apr 2005

Eastern redbud, Cercis canadensis, is a small tree or large shrub, growing up to thirty feet high.  The bark is dark and smooth, and twigs are slender with a zig-zag appearance.   Flowers bloom in mid to late spring and form small, vivid rose-colored bunches.

Serviceberry, Amalanchier sp, by DonArnold, 2025

Amalanchier is a genus that includes about two dozen varieties of  small trees or shrubs.  These are known by several different common names including shadwood, serviceberry, sugarplum, saskatoon, and others.  They bloom for short periods in late spring, displaying clusters of four to twenty white flowers.  Small red berries grow in mid to late summer, but do not last long since they are a favorite food source for both birds and small mammals.

Getting out for a walk to your favorite prairie or woodland habitat over the next few weeks will provide the opportunity to observe many of these plants while they are in bloom, including our own woodland trail around Lake Benedictine here at the Jurica-Suchy Nature Museum.

Great Horned Owls

The great-horned owl, Bubo virginianus, is native to much of the Americas, including most of North America and Central America and about half of South America.  It is the second heaviest owl in North America, right behind the snowy owl, Bubo scandiacus, weighing up to five-and-a-half pounds with a wingspan between three and five feet.

Great-horned owl, Bubo virginianus, by Andy Reago&Chrissy McClareen, Aug 2012
Range and distribution of Great-Horned Owl, Bubo virginianus by BirdLife International, 2014

Feathers cover the entire body, including their feet, and are varying shades of browns and grays.  Their backs and heads are mottled or barred in several patches.  This coloration, especially when coupled with mostly nocturnal activities, provides excellent camouflage.  Their ‘horns’ are actually feathers sticking upwards on either side of their heads.  These are called plumicorns, but their function is not well understood.  The feather structure of the wing allows owls to fly silently and includes a serrated leading edge to disrupt turbulence and softer feathers behind to help deaden sound.

Great horned owl plumicorns by Jean-pol Grandmont, Aug 2013
Great horned owl wing structure by Peter K. Burian, Aug 2015

The owl’s ears are covered by feathers, but are not symmetrical with one being higher on the side of the head than the other.  This arrangement provides the owl with the ability to triangulate sounds and precisely locate prey in the dark or when prey is hidden, such as when an animal is moving about under a layer of snow.  Their flattened face, shaped as a round disc, also helps to direct sound to their ears.  Like all owls, their eyes are fixed in the sockets, but the bird can swivel its head almost 180° to either side allowing it to see in all directions.

Great horned owl talons by Curtis Bouvier, May 2010

Great horned owls hunt from a perch, observing the area below them before diving swiftly and silently from far above.  Their diet consists of small mammals, birds, amphibians, and a variety of snakes.  Their talons are powerful and deadly, with a grip comparable to much larger birds such as golden eagles.  Most prey is killed by being pierced or crushed in the talons.  Owls may hunt and kill for more than their immediate needs and will cache their kills for future meals.

Great horned owls are not migratory.  When an owl is ready to mate, courtship occurs in late fall and pairs mate for life, establishing a territory together in which they will live their entire lives.  Most territorial defense is through hooting at a transgressor, but rare physical confrontations have been observed.  If an owl cannot establish its own territory, it will live in silence among the fringes of other territories.

Great-horned owl juveniles, Bubo virginianus, by Alan Vernon, Jun 2010
Great horned owl female & juvenile on nest by John Kees, Apr 2012

Males are responsible for picking a nest site, almost always taking over a nest constructed by another species.  Mated pairs breed once every two to three years, laying from one to six eggs.  Egg laying occurs between late February and early April.  The female alone incubates the eggs, never leaving the nest, while the male hunts and brings her food.  After about 33 days, the eggs hatch.  Young owls will start to fly after seven weeks, but take a full month or more to become proficient.

Great horned owl calling, Bubo virginianus, by Michael & Katie LaTour, Jan 2019 (at 0:02, 0:10)
Great-horned owl pair calling by Bushman, Dec 2013 (at 0:18, 0:41, 0:51, 1:22)

Owls are more often heard than seen.  Although the females are larger than males, females have a smaller voice box and thus a higher pitched hooting call ending with a slight rising note.  Juveniles can make hissing or screeching sounds and are often misidentified as barn owls, Tyto furcata.

You can learn more about these magnificent birds at the Jurica-Suchy Nature Museum.  Make a reservation to come see us by visiting our website at:  https://ben.edu/campus-links/jurica-suchy-nature-museum/  (click on Register to Visit the Museum).